Knot-tying implement.



No. 634,!52. Patented 0ct.-3, .1399. J. P.. SWIFT.

KNOT TYING IMPLEMENT.

(Application filed Mar. 28, 1898.)

(No Model.)

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UNITED STATES PATENT EErcE.

JOHN P. SWVIFT, OF WOODS HOIJL, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TOTHE EASTON & BURNHAM MACHINE COMPANY, OF PROVI- DENCE, RHODE ISLAND.

KNOT-TYING IMPLEMENT.

SPECIFICATION forming part of Letters Patent N 0. 634,152, dated October3, 1899.

Application filed March 28, 1898.

To all whom it may concern.-

Beit known that I, JOHN P. SWIFT, a citizen of the United States,residing at foods I-Ioll, in the county of Barnstable and StateofMassachusetts, have invented an Improvement in Knot-Tying Implements, ofwhich the following is a specification.

In tying the spoolers knot in factories the operatives are liable toleave the projecting ends of the thread or yarn of such a length as tocause serious breakage of the warp-threads; and it is the object of myinvention to provide a hand-operated implement whereby the operator canreadily tie the knot and have the projecting ends cut off with certaintyto the desired length; and it consists in the combination of opposingjaws and cutting means, with suitable handles for the thumb and fingersof the operator, as hereinafter set forth.

In the accompanying drawings, Figure 1 represents a side view of myimproved knottying implement, the jaws being shown in their openedposition and illustrating the third step in tying the knot. Fig. 2represents an under edge View. Fig. 3 represents a side view, thereverse inner edge of that shown in Fig. l, the holding-jaws beingturned to a downward position. Fig. 4 represents a forward end view inthe position shown in Fig. 3. Fig. 5 represents a side View, as shown inFig. 5, with the jaws in their closed position to form the beak andillustrating the first step in tying the knot. Fig. 6 represents a topedge view taken in the position shown in Fig. 1 with the beak formed asin Fig. 5. Fig. 7 is a detail view illustrating the second step in tyingthe knot. Fig. 8 is a detail view illustrating the fourth step in tyingthe knot, the severed threads having been slightly removed from the beakof the implement. Fig. 9 is a 'detail view illustrating the fifth stepin tying the knots.

In the drawings, Fig. 1, a represents the stationary jaw, which isformed by an eXten-' sion of the finger-lever A, while the movable jaw bis jointed to the lever A at the screw 01 and provided with the slot 6,adapted to receive the screw j, which is carried by the thumb-lever Band forms a stop for the move- Serial No. 675,501- (No model.)

ment of the jaw b, the said thumb-lever being also pivoted to thefinger-lever A by means of the screw (1. To the inner edge of thefingerleverA is secured the leaf-spring g by means of the screw 71, andto the inner edge of the thumb-lever B is pivoted the bearing-shoe c,which receives the action of the spring g, whereby the said spring willbe caused to operate both upon the thumb-lever B and the movable jaw I),the said bearing-shoe being pivoted atj to the thu nib-lever B andadapted to bear at its forward end it upon the edge Z of the movable jaw19. A cutter m is secured to the side of the thumb-lever B by means ofthe screws 01 n, the said cutter passing closely along the cutting edge0 at side of the station ary jaw a to sever the threads when tying theknot.

In operating to tie the knot the beak 1), formed by the closed jaws ofthe implement, is first placed over the two parallel threadsr r, asshown in Fig. 5, the said threads being held under light tension betweenthe fingers of the left hand. The beak p is then turned to the positionshown in Fig. 7, forming a turn If in the two threads around the beak.The beak is then turned to a horizontal position and the jaws opened toreceive the portion 1) of the threads, as shown in Fig. 1, and theclosure of the jaws when in this position will operate to first seizethe thread between the jaws and thereafter the continued forward movement of the cutter m to contact with the cutting. edge 0 of the jaw awill sever the threads while they are held by the jaws, as shown in Fig.8. The beak p of the implement is then turned to the opposite positionand the turn iof the threads drawn olf from the beak, thus completingthe knot s, as shown in Fig. 9, the severed end of the threads beingstill held by the jaws.

v The finger-lever A is provided with an eye or opening ac, adapted toreceive one of the lingers, preferably the third finger, thus leavingthe thumb and forefingers free for use, while the implement is held inthe hand of the operator with safety. The attachment of the implement tothe fingers, while the thumb and forefingers are left free for use'inordinary work, is a desirable feature of my improvement, whereby theimplement is rendered instantly available at all times, whieh would notbe the case if the implement was liable to shift its position in thehand, and thus disconeert the operator in its use.

I claim as my i11venlion In a knot-tyingimplement, the combination I ofthe linger-lever provided with the holdingjaw, the thumb-lever pivotedto the finger-lever and provided with the cutter for opera-

